﻿/*
*函数功能：从href获得参数
*sHref:   http://www.baidu.com/arg.htm?arg1=d&arg2=re
*sArgName:arg1, arg2
*return:    the value of arg. d, re
*/
function GetArgsFromHref(sHref, sArgName) {
    var args = sHref.split("?");
    var retval = "";

    if (args[0] == sHref) /*参数为空*/
    {
        return retval; /*无需做任何处理*/
    }
    var str = args[1];
    args = str.split("&");
    for (var i = 0; i < args.length; i++) {
        str = args[i];
        var arg = str.split("=");
        if (arg.length <= 1) continue;
        if (arg[0] == sArgName) retval = arg[1];
    }
    return retval;
}